Otto Robert Frisch

Otto Robert Frisch (1 October 1904-22 September 1979) was an Austrian-British nuclear physicist who, alongside Rudolf Peierls, came up with the first theoretical mechanism for the detonation of an atomic bomb in 1940.

Biography
Otto Robert Frisch was born in Vienna, Austria-Hungary in 1904, and he worked on the diffraction of atoms in Germany before moving to London in 1933 following the Nazi rise to power. In the United Kingdom, he worked on nuclear fission, coining the term. In 1940, he and Rudolf Peierls came up with the first theoretical mechanism for the detonation of an atomic bomb. He was involved with the United States' Manhattan Project, and he returned to the UK after the end of World War II. He retired in 1972 and died in 1979.